a form of technology that is less harmful to the environment than the usual or current form of technology

There should be an increase in the use of alternative technologies to heat and cool buildings. 应该在建筑取暖和降温方面更广泛地使用替代性技术。

They called on NATO to stop using sonar and to work towards developing alternative technology that does not harm whales. 他们呼吁NATO停止使用声纳水下探测系统，并致力于开发不伤害鲸鱼的替代性技术。